209214627164 has 12 divisors (see below), whose sum is σ = 366170104104. Its totient is φ = 104594597424.

The previous prime is 209214627157. The next prime is 209214627169. The reversal of 209214627164 is 461726412902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209214627169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3141974 + ... + 3207869.

It is an arithmetic number, because the mean of its divisors is an integer number (30514175342).

Almost surely, 2^209214627164 is an apocalyptic number.

It is an amenable number.

209214627164 is a deficient number, since it is larger than the sum of its proper divisors (156955476940).

209214627164 is a wasteful number, since it uses less digits than its factorization.

209214627164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358084 (or 6358082 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 209214627164 in words is "two hundred nine billion, two hundred fourteen million, six hundred twenty-seven thousand, one hundred sixty-four".